Home / 144,042,412.32-198,778,512.24-77,962,898.52

Finding the Fourth Proportional to 144,042,412.32, 198,778,512.24 and 77,962,898.52

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Solution

The fourth proportional to 144,042,412.32, 198,778,512.24 and 77,962,898.52 is: 107,588,790.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,042,412.32 : 198,778,512.24 = 77,962,898.52 : x
  2. Step 2: Convert to fraction form
    144,042,412.32/198,778,512.24 = 77,962,898.52/x
  3. Step 3: Cross multiply
    144,042,412.32x = 198,778,512.24 × 77,962,898.52
  4. Step 4: Simplify right side
    144,042,412.32x = 15,497,348,977,723,698
  5. Step 5: Solve for x
    x = 15,497,348,977,723,698/144,042,412.32
  6. Step 6: Final answer
    x = 107,588,790.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.